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Clinical Trial Details — Status: Recruiting

Administrative data

NCT number NCT04923542
Other study ID # MCC-20899
Secondary ID
Status Recruiting
Phase Phase 1/Phase 2
First received
Last updated
Start date November 30, 2021
Est. completion date December 31, 2024

Study information

Verified date January 2024
Source H. Lee Moffitt Cancer Center and Research Institute
Contact Kamran A Ahmed, MD
Phone 813-745-8424
Email Kamran.Ahmed@moffitt.org
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

This is a single arm study of abemaciclib and endocrine therapy with stereotactic radiosurgery (SRS) among patients with hormone receptor (HR)+/HER2- metastatic breast cancer brain metastases.


Description:

The study is designed as a prospective, single-arm, nonrandomized, open-label, phase I/II trial of abemaciclib and endocrine therapy with stereotactic radiosurgery (SRS) among patients with hormone receptor (HR)+/HER2- metastatic breast cancer brain metastases. Treatment will be initiated with one week of abemaciclib followed by stereotactic radiation to sites of brain metastases or post-operative cavities with continued abemaciclib. Safety will be monitored initially by a 3+3 design. This will be followed by a phase 2 study to evaluate intracranial progression free survival (PFS). If unexpected neurologic toxicities are noted, the dose of radiation therapy will be modified.


Recruitment information / eligibility

Status Recruiting
Enrollment 31
Est. completion date December 31, 2024
Est. primary completion date December 31, 2024
Accepts healthy volunteers No
Gender All
Age group 18 Years and older
Eligibility Inclusion Criteria: - HR+ breast cancer to fulfill the requirement of HR+ disease, a breast cancer must express (= 1%), by immunohistochemistry (IHC), at least 1 of the hormone receptors (estrogen receptor [ER] or progesterone receptor [PR]) as defined in the American Society of Clinical Oncology (ASCO) / College of American Pathologists (CAP) Guidelines - To fulfill the requirement of HER2- disease, a breast cancer must not demonstrate, at initial diagnosis or upon subsequent biopsy, overexpression of HER2 by either IHC or in-situ hybridization as defined by the ASCO / CAP Guidelines - = 15 brain metastases eligible for stereotactic radiation - Able to swallow oral medications - Willing to comply with all study procedures and available for duration of the study - Measurable brain disease per RANO-BM criteria that can be measured in at least one dimension as = 0.5 cm for both intact brain metastases and post-operative cavities - Eligible for SRS to brain metastases or to the post-operative bed following surgical resection - Maximum diameter of the largest intact brain metastases = 4 cm - Eastern Cooperative Oncology Group performance status 0 to 2 - A formalin-fixed, paraffin-embedded tumor tissue block or 10 unstained slides of intracranial/extracranial tumor sample (archival or recent) for biomarker evaluation should be made available and submitted to the central lab for correlative studies. If attempts to obtain archival tissue are unsuccessful the patient may be enrolled. - Individuals with prior SRS/fractioned stereotactic radiotherapy (FSRT) treatment will be allowed if active measurable disease has not previously been treated with radiation therapy - Women of childbearing potential (WOCBP) must have a negative serum pregnancy test (minimum sensitivity 25 IU/L or equivalent units of human chorionic gonadotropin) within 7 days of the first dose of abemaciclib - WOCBP must agree to follow instructions for method(s) of contraception for the duration of treatment with study drug(s), and for three weeks following the last dose of abemaciclib - Adequate organ function as defined in protocol Exclusion Criteria: - Presence of leptomeningeal disease - Prior receipt of whole brain radiation therapy - Prior receipt of abemaciclib in the setting of brain metastases or in the past 6 months for the treatment of metastatic disease. - All toxicities attributed to prior anticancer therapy must have been resolved to Grade 1 (NCI CTCAE Version 5) or baseline before administration of study drug(s) other than: a. Toxicities attributed to prior anticancer therapy that either are not expected to resolve and/or result in long-lasting sequelae, such as neuropathy after platinum-based therapy b. Toxicities that are not expected to interfere with study treatment, such as fatigue, alopecia, or grade 2 hematologic toxicity - Women who are pregnant or breastfeeding - The patient has serious and/or uncontrolled preexisting medical condition(s) that, in the judgment of the investigator, would preclude participation in this study (for example, interstitial lung disease, severe dyspnea at rest or requiring oxygen therapy, severe renal impairment [e.g. estimated creatinine clearance <30ml/min], history of major surgical resection involving the stomach or small bowel, or preexisting Crohn's disease or ulcerative colitis or a preexisting chronic condition resulting in baseline Grade 2 or higher diarrhea) - The patient has active systemic bacterial infection (requiring intravenous [IV] antibiotics at time of initiating study treatment), fungal infection, or detectable viral infection (such as known human immunodeficiency virus positivity or with known active hepatitis B or C [for example, hepatitis B surface antigen positive]. Screening is not required for enrollment - The patient has a personal history of any of the following conditions: syncope of cardiovascular etiology, ventricular arrhythmia of pathological origin (including, but not limited to, ventricular tachycardia and ventricular fibrillation), or sudden cardiac arrest - History of prior malignancy within 2 years prior to screening, with the exception of those with a negligible risk of metastasis or death (e.g., 5-year OS of >90%), such as but not limited to, non-melanoma skin carcinoma, or stage I endometriod uterine cancer, and others at the discretion of the PI. - Major surgery or significant traumatic injury that has not been recovered from by 14 days before the initiation of study drug - Current or prior participation in a study of an investigational agent or investigational device within 2 weeks of first dose of study treatment - History of allergy or hypersensitivity to any of the study drugs or study drug components - Prisoners or individuals who are involuntarily incarcerated

Study Design


Intervention

Radiation:
Stereotactic Radiosurgery (SRS)
Patients will receive single session SRS to intact brain metastases and post-operative cavities. For intact brain metastases, this will be 15 Gy to lesions between 31-40 mm, 18 Gy to 21- 30 mm, and 24 Gy to lesions measuring = 20 mm.
Drug:
Abemaciclib
Abemaciclib is an orally administered selective small-molecule inhibitor of CDK4 and CDK6 that is 14 times more potent against CDK4 than CDK6 in enzymatic assays that is approved for the treatment of advanced or metastatic breast cancers. Abemaciclib will be administered at a dose of 150 mg twice daily.
Endocrine therapy
Abemaciclib will be administered with standard of care endocrine therapy. Endocrine therapy can consist of fulvestrant or an aromatase inhibitor. Dosing of concurrent endocrine therapy with abemaciclib should follow standard dosing and safety guidelines.

Locations

Country Name City State
United States Moffitt Cancer Center Tampa Florida

Sponsors (2)

Lead Sponsor Collaborator
H. Lee Moffitt Cancer Center and Research Institute Eli Lilly and Company

Country where clinical trial is conducted

United States, 

Outcome

Type Measure Description Time frame Safety issue
Primary Intracranial Progression Free Survival (PFS) Intracranial Progression Free Survival: defined as the time from the date of start of treatment to investigator-determined date of progression or death due to any cause, whichever comes first. Progression will be determined by Response Assessment in Neuro-Oncology Brain Metastases (RANO-BM) Criteria. Up to 12 months
Secondary Intracranial local brain tumor control Intracranial local brain tumor control following SRS and abemaciclib will be determined from irradiated lesions according to RANO-BM criteria. Up to 12 months
Secondary Intracranial distant brain tumor control Intracranial distant brain tumor control following SRS and abemaciclib will determined by the development of new lesions outside of the irradiated area. Up to 12 months
Secondary Extracranial Progression Free Survival Extracranial Progression Free Survival: Time from the date of start of treatment to the investigator determined date of progression (determined by RECIST) or death due to any cause, whichever occurs first. Up to 12 months
Secondary Overall Survival Overall Survival is defined as the time from the start of treatment to death due to any cause. Up to 12 months
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